Question

Choose the point whose coordinates lie within the region by the following system of inequalities.
y<2x+3
y<-3x-1
a.(5,1)
b.(1,5)
c.(1,-5)
d.(0,5)

Answer 1

try them out and see what fits

Answer 2

do i have to draw a graph

Answer 3

no, you just have to insert the value for x into the spot designated for the x; and the y value into the spot that is designated for the y; do the mathing and see if you get a true or false result

Answer 4

true results are good, false results are thrown out

Answer 5

the last step in any solution is the double check; thats all this amounts to is double checking the answers to see what fits

Answer 6

i got a.

Answer 7

can you prove its a "

Answer 8

i subtracted both x's and y's

Answer 9

lets try it out
(x=5, y=1)

1<2(5)+3
1 < 13 ..... true

1<-3(5)-1
1< -16 .... false; since 1 is not less than -16; well, we know it aint a

Answer 10

were did you get the 16 from?

Answer 11

what is -3(5) - 1 ??

Answer 12

its -15-1=-14

Answer 13

no its not; but even if it was; is 1 < -14?

Answer 14

no, 1 is still bigger. the only answer that has an - on the y exponent is c. so im fo sho thinking its c

Answer 15

i like C too ;)

Answer 16

Thanks for explaining it to me friend =)